The conservative group said the person infected during the conference did not go into the main ballroom, where Trump and others spoke, and had “limited his interactions to very few people.”

Anyone who had direct contact with him or had been in the same room has been contracted personally by the ACU. No one else at the conference has tested positive for the virus, the group said.

“While this has undoubtedly been a challenge for us all, we should be thankful that nobody else has tested positive for coronavirus at this time and encourage you to join us in keeping the one person who is sick in our prayers,” the group said.

White House spokeswoman Stephanie Grisham said Monday that Trump had not been tested “because he has neither had prolonged close contact with any known confirmed COVID-19 patients, nor does he have any symptoms.”